﻿/* 
 * PROJECT: NyARToolkitCS
 * --------------------------------------------------------------------------------
 *
 * The NyARToolkitCS is C# edition NyARToolKit class library.
 * Copyright (C)2008-2012 Ryo Iizuka
 *
 * This work is based on the ARToolKit developed by
 *   Hirokazu Kato
 *   Mark Billinghurst
 *   HITLab, University of Washington, Seattle
 * http://www.hitl.washington.edu/artoolkit/
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as publishe
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * For further information please contact.
 *	http://nyatla.jp/nyatoolkit/
 *	<airmail(at)ebony.plala.or.jp> or <nyatla(at)nyatla.jp>
 * 
 */
namespace jp.nyatla.nyartoolkit.cs.core
{
    /**
     * このクラスはデータ型です。
     * ３次元の浮動小数点座標を格納します。
     */
    public class NyARDoublePoint3d
    {
        /** X座標の値です。*/
        public double x;
        /** Y座標の値です。*/
        public double y;
        /** Z座標の値です。*/
        public double z;
        /**
         * この関数は、オブジェクトの一次配列を作ります。
         * @param i_number
         * 作成する配列の長さ
         * @return
         * 新しい配列。
         */
        public static NyARDoublePoint3d[] createArray(int i_number)
        {
            NyARDoublePoint3d[] ret = new NyARDoublePoint3d[i_number];
            for (int i = 0; i < i_number; i++)
            {
                ret[i] = new NyARDoublePoint3d();
            }
            return ret;
        }
        /**
         * この関数は、オブジェクトからインスタンスに値をセットします。
         * @param i_in
         * コピー元のオブジェクト。
         */
        public void setValue(NyARDoublePoint3d i_in)
        {
            this.x = i_in.x;
            this.y = i_in.y;
            this.z = i_in.z;
            return;
        }
        /**
         * この関数は、インスタンスの座標と、指定点との距離の２乗値を返します。
         * @param i_p1
         * 点の座標
         * @return
         * i_p1との距離の二乗値
         */
        public double sqDist(NyARDoublePoint3d i_p1)
        {
            double x, y, z;
            x = this.x - i_p1.x;
            y = this.y - i_p1.y;
            z = this.z - i_p1.z;
            return x * x + y * y + z * z;
        }
        /**
         * この関数は、頂点を移動します。
         * @param i_tx
         * 移動する距離x
         * @param i_ty
         * 移動する距離y
         * @param i_tz
         * 移動する距離z
         */
        public void translate(double i_tx, double i_ty, double i_tz)
        {
            this.x += i_tx;
            this.y += i_ty;
            this.z += i_tz;
        }

    }
}
